CN110587115A - Novel linear friction welding device - Google Patents
Novel linear friction welding device Download PDFInfo
- Publication number
- CN110587115A CN110587115A CN201910927422.6A CN201910927422A CN110587115A CN 110587115 A CN110587115 A CN 110587115A CN 201910927422 A CN201910927422 A CN 201910927422A CN 110587115 A CN110587115 A CN 110587115A
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- cam
- support
- double
- sliding block
- support frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a novel linear friction welding device which comprises a base and a support frame, wherein the support frame is movably arranged on the upper end surface of the base; comprises a vibration mechanism, a double-cam mechanism and a feeding mechanism; during welding, the vibration mechanism drives the workpiece to be welded to do up-and-down reciprocating motion, the double cam mechanism drives the workpiece to be welded to do left-and-right reciprocating motion, and the feeding mechanism drives the two workpieces to do opposite motion, so that the welding process is completed. According to the invention, the up-and-down vibration amplitude of the to-be-welded part is adjusted through the planet phase change mechanism, so that the to-be-welded part is relatively static, and the dislocation phenomenon of the to-be-welded part after sudden stop is avoided; the double-cam structure is adopted to drive the workpiece to be welded to move in a left-right reciprocating mode.
Description
Technical Field
The invention relates to the technical field of welding devices, in particular to a novel linear friction welding device.
Background
The linear friction welding technology is used as a novel, high-quality, high-efficiency and environment-friendly solid phase connection technology, and has achieved great success in manufacturing and maintaining the whole blade disc of the aeroengine. The reason why the linear friction welding machine has not been widely used after the development of more than 20 years as a welding method with potential application prospect is that the linear friction welding machine is expensive, and the consumed energy is sharply increased along with the increase of the reciprocating frequency, so that the requirement on an external device is extremely high.
Disclosure of Invention
The invention aims to solve the problems that: the novel linear friction welding device changes the amplitude of the up-and-down reciprocating motion of a workpiece to be welded through an amplitude modulation mechanism, and drives the left-and-right reciprocating motion of the workpiece to be welded through a double-cam mechanism.
The technical scheme provided by the invention for solving the problems is as follows: a novel linear friction welding device comprises a base and a support frame, wherein the support frame is movably arranged on the upper end face of the base; comprises a vibration mechanism, a double-cam mechanism and a feeding mechanism;
the vibration mechanism is arranged on the support frame and comprises a crankshaft driving motor, a phase change mechanism, a vertical slide rail, a vertical slide block, a steering joint, a cross beam, two connectors, two connecting rods, two crankshafts and two bearing seats, wherein the vertical slide rail is arranged at the lower end of the support frame, the vertical slide block is movably arranged in the vertical slide rail and is connected with the steering joint, a first clamp for clamping a workpiece to be welded is arranged on the end surface of the vertical slide block, which is far away from the vertical slide rail, the upper end of the steering joint is hinged with the cross beam, the two connectors are respectively hinged to the two ends of the cross beam, and the connecting rods are hinged to one ends of the connectors, which are far away from the; the two crankshafts are respectively and rotatably arranged at the upper ends of the connecting rods, two ends of the phase change mechanism are respectively connected with the two crankshafts, the crankshaft driving motor is in transmission connection with the crankshafts, and the crankshaft driving motor is arranged at the upper end of the supporting frame;
the phase change mechanism comprises a stepping motor, a turbine, an output shaft, a bevel gear bearing, an input shaft, a planet carrier, a worm and two phase change bevel gears; the stepping motor is arranged at the upper end of the support frame and is in transmission connection with the worm, the worm wheel is fixed at one end of the planet carrier, the planet carrier is provided with an axial containing hole, the two phase-changing bevel gears are rotatably arranged on the planet carrier through bevel gear bearings, the input shaft and the output shaft are both arranged in the containing hole, one end of the input shaft is connected with the crank shaft, and the other end of the input shaft is meshed with the phase-changing bevel gears; one end of the output shaft is connected with the other crank shaft, and the other end of the output shaft is meshed with the phase-changing bevel gear;
the double cam mechanism is arranged on the upper end surface of the base and drives the workpiece to be welded to move in a left-right reciprocating mode; the feeding mechanism drives the support frame to reciprocate back and forth on the base.
Preferably, the double-cam mechanism comprises a double-cam driving motor, an installation frame, an intermediate wheel, a bottom plate, a support and two cam mechanisms, the support is arranged on the upper end face of the bottom plate, the intermediate wheel is rotatably arranged on the installation frame, each cam mechanism comprises a cam main shaft, a synchronizing wheel, a roller and a cam, one end of each cam main shaft is rotatably connected with the installation frame, the synchronizing wheel and the cam are arranged on the cam main shafts, the rollers are rotatably arranged on the support, the cams correspond to the roller in position, the synchronizing wheels are in transmission connection with the intermediate wheel through a synchronizing belt, a driving wheel is arranged at the lower end of one cam main shaft of the two cam mechanisms, and the driving wheels are in transmission connection with the double-cam driving motor through a belt; and a second clamp used for clamping a workpiece to be welded is arranged at one end of the bottom plate, which is far away from the support.
Preferably, feed mechanism includes support, electric putter, horizontal slide rail and horizontal slider, the support sets up the up end at the base, electric putter sets up on the support, electric putter keeps away from the one end and the horizontal slider connection of support, horizontal slider activity sets up in horizontal slide rail, the support frame sets up the up end at horizontal slider.
Preferably, the upper end of the support frame is provided with two bearing seats, bearings are arranged in the bearing seats, and the two crankshafts are respectively rotatably arranged in the bearings.
Compared with the prior art, the invention has the advantages that: the amplitude modulation mechanism is used for changing the amplitude of the up-and-down reciprocating motion of the workpiece to be welded, and the double-cam mechanism is used for driving the workpiece to be welded to move in a left-and-right reciprocating mode. Under the condition that the weldment is the same, the required driving force is greatly reduced, the reciprocating up-and-down motion of the workpiece to be welded can be changed according to different vibration amplitudes required by the start and the end of welding, the start and the end are in relative static states, and the dislocation of the workpiece after welding is prevented. In addition, when the input frequency is constant, the reciprocating motion frequency can be further increased by changing the double-cam assembly, so that the heat of the welding joint is increased, and the welding joint with better performance is obtained.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the vibration mechanism of the present invention;
FIG. 3 is a schematic view of the phase change mechanism of the present invention;
FIG. 4 is a front view of the present invention;
FIG. 5 is a bottom view of the present invention;
FIG. 6 is a schematic view of the dual cam mechanism of the present invention;
the attached drawings are marked as follows: 1-base 2-support 3-push rod 4-horizontal sliding rail 5-horizontal sliding block 6-roller 7-support frame 8-vertical sliding rail 9-vertical sliding block 10-steering joint 11-cross beam 12-connecting head 13-connecting rod 14-support 15-crank shaft driving motor 16-crank shaft 17-stepping motor 1801-turbine 1802-output shaft 1803-bevel gear bearing 1804-input shaft 1805-planet carrier 1806-phase-changing bevel gear 1807-worm 19-bearing seat 20-clamp I21-bottom plate 22-workpiece to be welded 23-double-cam driving motor 24-driving wheel 25-cam main shaft 26-cam 27-synchronizing wheel 28-synchronizing belt 29-intermediate wheel 30 -a mounting frame
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the accompanying drawings and examples, so that how to implement the embodiments of the present invention by using technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
The specific embodiment of the invention is shown in fig. 1 to 6, and a novel linear friction welding device comprises a base 1 and a support frame 7, wherein the support frame 7 is movably arranged on the upper end surface of the base 1; the method is characterized in that: comprises a vibration mechanism, a double-cam mechanism and a feeding mechanism;
the vibration mechanism is arranged on the support frame 7 and comprises a crankshaft driving motor 15, a phase change mechanism, a vertical slide rail 8, a vertical slide block 9, a steering joint 10, a cross beam 11, two connectors 12, two connecting rods 13, two crankshafts 16 and two bearing seats 19, wherein the vertical slide rail 8 is arranged at the lower end of the support frame 7, the vertical slide block 9 is movably arranged in the vertical slide rail 8, the vertical slide block 9 is connected with the steering joint 10, a first clamp 20 used for clamping a workpiece 22 to be welded is arranged on the end face, away from the vertical slide rail 8, of the vertical slide block 9, the upper end of the steering joint 10 is hinged to the cross beam 11, the two connectors 12 are respectively hinged to two ends of the cross beam 11, and the connecting rods 13 are hinged to one end, away from the cross beam 11, of; the two crankshafts 16 are respectively and rotatably arranged at the upper end of the connecting rod 13, two ends of the phase change mechanism are respectively connected with the two crankshafts 16, the crankshaft driving motor 15 is in transmission connection with the crankshafts 16, and the crankshaft driving motor 15 is arranged at the upper end of the supporting frame 7; when the direction changing mechanism does not work, the direction changing mechanism is connected with a left crank shaft and a right crank shaft equivalently through a fixed shaft, the two crank shafts can move synchronously, the crank shafts drive a motor to drive the crank shafts to rotate, the right crank shafts rotate simultaneously after passing through the phase changing mechanism, and the cross beam moves up and down in a reciprocating mode under the action of a connecting rod and a connecting head, so that the vertical sliding block is driven to move up and down in a reciprocating mode along the vertical sliding rail; when the phase change mechanism starts to operate, a phase difference can be generated when the left crank shaft and the right crank shaft rotate, the left crank shaft and the right crank shaft do up-and-down reciprocating motion asynchronously, the cross beam rotates along the pin while moving up and down, the distance of the steering joint when moving up and down along the vertical sliding rail is reduced, and when the phase change mechanism enables the phase difference of the left crank shaft and the right crank shaft to reach 180 degrees, the steering joint can be static, and the phase change mechanism can be used for the linear friction welding stopping process.
The phase change mechanism comprises a stepping motor 17, a turbine 1801, an output shaft 1802, a bevel gear bearing 1803, an input shaft 1804, a planet carrier 1805, a worm 1807 and two phase change bevel gears 1806; the stepping motor 17 is arranged at the upper end of the support frame 7, the stepping motor 17 is in transmission connection with the worm 1807, the turbine 1801 is fixed at one end of the planet carrier 1805, the planet carrier 1805 is provided with an axial accommodating hole, the two phase change bevel gears 1806 are rotatably arranged on the planet carrier 1805 through bevel gear bearings 1803, the input shaft 1804 and the output shaft 1802 are both arranged in the accommodating hole, one end of the input shaft 1804 is connected with the crank shaft 16, and the other end is meshed with the phase change bevel gears 1806; one end of the output shaft 1802 is connected with another crank shaft 16, and the other end is meshed with a phase change bevel gear 1806; when the worm gear does not work, the rotating speed of the planet carrier is zero, the rotating speeds of the input shaft and the output shaft are the same, the directions are opposite, and the crankshaft rotates to drive the workpieces to be welded to reciprocate up and down; when the worm drives the turbine, the planet carrier rotates around the input shaft, and the planet carrier has a certain rotating speed W1The rotational speed of the input shaft is W2When the input shaft transmits the rotating speed to the output shaft, the rotating speed is accumulated on the planet carrier, and the rotating speed of the output shaft is 2W1+W2So that the rotating speeds of the input shaft and the output shaft are different in the same time, the rotating angles of the crank shaft are different in the same time, the up-and-down motion amplitudes of the connecting rod connected with the crank shaft are different, and the amplitude modulation vibration function is realized.
The double cam mechanism is arranged on the upper end surface of the base 1 and drives the workpiece 22 to be welded to move in a left-right reciprocating mode; the feeding mechanism drives the support frame 7 to reciprocate on the base 1.
Further, the double-cam mechanism comprises a double-cam driving motor 23, a mounting frame 30, an intermediate wheel 29, a bottom plate 21, a support 14 and two cam mechanisms, the support 14 is arranged on the upper end face of the bottom plate 21, the intermediate wheel 29 is rotatably arranged on the mounting frame 30, the cam mechanism comprises a cam main shaft 25, a synchronizing wheel 27, a roller 6 and a cam 26, one end of the cam main shaft 25 is rotatably connected with the mounting frame 30, the synchronizing wheel 27 and the cam 26 are arranged on the cam main shaft 25, the roller 6 is rotatably arranged on the support 14, the cam 26 corresponds to the position of the roller 6, the synchronizing wheel 27 is in transmission connection with the intermediate wheel 29 through a synchronizing belt 28, a driving wheel 24 is arranged at the lower end of one cam main shaft 25 of the two cam mechanisms, and the driving wheel 24 is in transmission connection with the double-cam driving motor 23 through a belt; and a second clamp used for clamping a workpiece 22 to be welded is arranged at one end of the bottom plate 21, which is far away from the bracket 14. During assembly, the lift of the cam corresponds to the return stroke of the cam. The support is fixedly connected with the bottom plate, the idler wheel is arranged between the support and the cam, the synchronous wheel rotates to drive the linkage of the two cam main shafts, and when the cam is in a lift range, the cam drives the idler wheel to move rightwards, so that the bottom plate is driven to move rightwards. When the cam is in the return stroke, the cam is in the lift range, the roller can be driven to move leftwards, and then the bottom plate is driven to move leftwards. The synchronous wheel rotates for one circle, and the bottom plate moves back and forth twice.
Further, feed mechanism includes support 2, electric putter 3, horizontal slide rail 4 and horizontal slider 5, support 2 sets up the up end at base 1, electric putter 3 sets up on support 2, electric putter 3 keeps away from the one end of support 2 and is connected with horizontal slider 5, horizontal slider 5 activity sets up in horizontal slide rail 4, support frame 7 sets up the up end at horizontal slider 5.
Further, two bearing seats 19 are arranged at the upper end of the support frame 7, bearings are arranged in the bearing seats 19, and the two crankshafts 16 are respectively and rotatably arranged in the bearings.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.
Claims (4)
1. A novel linear friction welding device comprises a base (1) and a supporting frame (7), wherein the supporting frame (7) is movably arranged on the upper end face of the base (1); the method is characterized in that: comprises a vibration mechanism, a double-cam mechanism and a feeding mechanism;
the vibration mechanism is arranged on the support frame (7), the vibration mechanism comprises a crankshaft driving motor (15), a phase change mechanism, a vertical sliding rail (8), a vertical sliding block (9), a steering joint (10), a cross beam (11), two connectors (12), two connecting rods (13), two crankshafts (16) and two bearing seats (19), the vertical sliding rail (8) is arranged at the lower end of the support frame (7), the vertical sliding block (9) is movably arranged in the vertical sliding rail (8), the vertical sliding block (9) is connected with the steering joint (10), a first clamp (20) used for treating a workpiece (22) to be welded is arranged on the end face of the vertical sliding rail (8) far away from the vertical sliding block (9), the upper end of the steering joint (10) is hinged with the cross beam (11), and the two clamping joints (12) are respectively hinged at the two ends of the cross beam connector (11), the connecting rod (13) is hinged with one end of the connector (12) far away from the cross beam (11); the two crankshafts (16) are respectively and rotatably arranged at the upper end of the connecting rod (13), two ends of the phase change mechanism are respectively connected with the two crankshafts (16), the crankshaft driving motor (15) is in transmission connection with the crankshafts (16), and the crankshaft driving motor (15) is arranged at the upper end of the supporting frame (7);
the phase change mechanism comprises a stepping motor (17), a turbine (1801), an output shaft (1802), a bevel gear bearing (1803), an input shaft (1804), a planet carrier (1805), a worm (1807) and two phase change bevel gears (1806); the stepping motor (17) is arranged at the upper end of the support frame (7), the stepping motor (17) is in transmission connection with the worm (1807), the turbine (1801) is fixed at one end of the planet carrier (1805), the planet carrier (1805) is provided with an axial accommodating hole, the two phase-change bevel gears (1806) are rotatably arranged on the planet carrier (1805) through bevel gear bearings (1803), the input shaft (1804) and the output shaft (1802) are both arranged in the accommodating hole, one end of the input shaft (1804) is connected with the crank shaft (16), and the other end of the input shaft is meshed with the phase-change bevel gears (1806); one end of the output shaft (1802) is connected with another crank shaft (16), and the other end of the output shaft is meshed with a phase change bevel gear (1806);
the double cam mechanism is arranged on the upper end surface of the base (1) and drives a workpiece (22) to be welded to move in a left-right reciprocating mode; the feeding mechanism drives the support frame (7) to reciprocate on the base (1).
2. A novel linear friction welding apparatus according to claim 1, wherein: the double-cam mechanism comprises a double-cam driving motor (23), a mounting frame (30), an intermediate wheel (29), a bottom plate (21), a support (14) and two cam mechanisms, the support (14) is arranged on the upper end face of the bottom plate (21), the intermediate wheel (29) is rotatably arranged on the mounting frame (30), each cam mechanism comprises a cam main shaft (25), a synchronizing wheel (27), a roller (6) and a cam (26), one end of each cam main shaft (25) is rotatably connected with the mounting frame (30), the synchronizing wheel (27) and the cam (26) are arranged on the cam main shafts (25), the rollers (6) are rotatably arranged on the support (14), the cams (26) correspond to the positions of the rollers (6), the synchronizing wheels (27) are in transmission connection with the intermediate wheel (29) through a synchronous belt (28), and a transmission wheel (24) is arranged at the lower end of one cam main shaft (25) of the two cam mechanisms, the transmission wheel (24) is in transmission connection with the double-cam driving motor (23) through a belt; and a second clamp used for clamping a workpiece (22) to be welded is arranged at one end of the bottom plate (21) departing from the support (14).
3. A novel linear friction welding apparatus according to claim 1, wherein: the feeding mechanism comprises a support (2), an electric push rod (3), a horizontal sliding rail (4) and a horizontal sliding block (5), the support (2) is arranged on the upper end face of the base (1), the electric push rod (3) is arranged on the support (2), one end, far away from the support (2), of the electric push rod (3) is connected with the horizontal sliding block (5), the horizontal sliding block (5) is movably arranged in the horizontal sliding rail (4), and the support frame (7) is arranged on the upper end face of the horizontal sliding block (5).
4. A novel linear friction welding apparatus according to claim 1, wherein: two bearing seats (19) are arranged at the upper end of the support frame (7), bearings are arranged in the bearing seats (19), and the two crankshafts (16) are respectively rotatably arranged in the bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927422.6A CN110587115A (en) | 2019-09-27 | 2019-09-27 | Novel linear friction welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927422.6A CN110587115A (en) | 2019-09-27 | 2019-09-27 | Novel linear friction welding device |
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| Publication Number | Publication Date |
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| CN110587115A true CN110587115A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910927422.6A Pending CN110587115A (en) | 2019-09-27 | 2019-09-27 | Novel linear friction welding device |
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2019
- 2019-09-27 CN CN201910927422.6A patent/CN110587115A/en active Pending
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| EP2788141B1 (en) * | 2011-12-05 | 2019-09-18 | Apci Llc | Apparatus for linear friction welding |
| JP2017042772A (en) * | 2015-08-24 | 2017-03-02 | 株式会社Ihi | Linear friction joint device and linear friction joint method |
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Application publication date: 20191220 |
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